<template>
  <div class="login-box">
    <!-- 头像区域 -->
    <div class="avatar-box">
      <img src="../../../assets/img/logo.png" alt="" />
    </div>
    <!-- 表单区域 -->
    <el-form
      ref="loginFormRef"
      :rules="loginFormRules"
      :model="loginForm"
      label-width="0px"
      class="login-from"
    >
      <!-- 用户名 -->
      <el-form-item prop="username">
        <el-input
          v-model="loginForm.username"
          prefix-icon="el-icon-user"
        ></el-input>
      </el-form-item>
      <!-- 密码 -->
      <el-form-item prop="password">
        <el-input
          v-model="loginForm.password"
          prefix-icon="el-icon-lock"
          type="password"
        ></el-input>
      </el-form-item>
      <!-- 按钮 -->
      <el-form-item class="btns">
        <el-button type="primary" @click="validateClick">登入</el-button>
        <el-button type="info" @click="resetClick">重置</el-button>
      </el-form-item>
    </el-form>
  </div>
</template>

<script>
export default {
  name: 'LoginBox',
  data() {
    return {
      //表单绑定
      loginForm: {
        username: 'admin',
        password: '123456',
      },
      //表单验证
      loginFormRules: {
        username: [
          { required: true, message: '请输入用户名', trigger: 'blur' },
          {
            min: 5,
            max: 10,
            message: '长度在 5 到 10 个字符',
            trigger: 'blur',
          },
        ],
        password: [
          { required: true, message: '请输入密码', trigger: 'blur' },
          {
            min: 6,
            max: 10,
            message: '长度在 6 到 10 个字符',
            trigger: 'blur',
          },
        ],
      },
    }
  },
  methods: {
    //表单重置
    resetClick() {
      this.$refs.loginFormRef.resetFields()
    },
    //表单预验证
    validateClick() {
      this.$refs.loginFormRef.validate(async valid => {
        if (!valid) return
        const { data: res } = await this.$http.post('login', this.loginForm)
        //判断请求
        if (res.meta.status === 200) {
          this.$message.success('登入成功')
        } else {
          this.$message.error('登入失败，这是一条错误请求')
        }
        console.log(res)
        window.sessionStorage.setItem('token', res.data.token)
        this.$router.push('/home')
      })
    },
  },
}
</script>

<style lang="less" scoped>
.login-box {
  width: 450px;
  height: 300px;
  background-color: #fff;
  border-radius: 3px;
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
}
.avatar-box {
  position: absolute;
  left: 50%;
  transform: translate(-50%, -50%);
  height: 130px;
  width: 130px;
  border: 1px solid #eee;
  background-color: #fff;
  border-radius: 50%;
  padding: 10px;
  box-shadow: 0 0 10px #ddd;
  img {
    width: 100%;
    height: 100%;
    border-radius: 50%;
    background-color: #eee;
  }
}
.btns {
  display: flex;
  justify-content: flex-end;
}
.login-from {
  box-sizing: border-box;
  position: absolute;
  bottom: 0;
  width: 100%;
  padding: 0 20px;
}
</style>